Iquiapaza, Robert Aldo, Aureliano Angel Bressan, and Hudson Fernandes Amaral. “Non-Linear Forecast of Returns at BOVESPA: Trading Volume in a Smooth Transition Auto Regressive Model”. Journal of Contemporary Administration 14, no. 1 (1): 149-171. Accessed April 27, 2024. https://rac.anpad.org.br/index.php/rac/article/view/729.